水力发电学报2016，Vol.35Issue(10)：40-47,8.DOI:10.11660/slfdxb.20161005
蛮石斜坡型仿自然鱼道水力学特性研究
Hydraulic characteristics of nature-like fishways of rock-ramp type
摘要
Abstract
Fishways of rock-ramp type are a common form of nature-like fishways.This paper demonstrates two new fishway structures,i.e.aligned slot arrangement and staggered slot arrangement,and presents three-dimensional flow simulations of the two designs to examine their hydraulic characteristics.Scale model tests were conducted to verify the simulations and the numerical model.The results show that in comparison of the flows in the same depth of water,the aligned design is featured with a lower maximum velocity,and the staggered design has a higher growth rate of flow velocity in the adjacent pool downstream.The simulated vertical profiles and test data reveal that the former is more rational in the distributions of turbulent kinetic energy than the latter.Thus,the aligned slot design with better overall hydraulic performance is recommended in this study.关键词
蛮石斜坡型仿自然鱼道/三维数值模拟/流速/紊动能Key words
fishway of rock-ramp type/3-D fluid dynamics model/velocity/turbulent kinetic energy分类
自科综合引用本文复制引用
何雨艨,安瑞冬,李嘉,易文敏,曾曾..蛮石斜坡型仿自然鱼道水力学特性研究[J].水力发电学报,2016,35(10):40-47,8.基金项目
国家自然科学基金(51379136) （51379136）
